Exercise: Calculated Column to Sum Transactions by Weekday

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The answer to the exercise will be included and explained if you attend the course listed below!

Before you can do this exercise, you'll need to download and unzip
this file (if you have any problems doing this, click here for help).

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The aim of this exercise is to show the total value of transactions according
to the day of the week:

It looks like Friday was the most popular day, but not by much.

Here's what the PowerPivot field list should look like (eventually!):

The two fields of interest for our pivot table.

To start, if you haven't already done so run the script in the above folder
to generate the MAM database (not for commercial use or
copying), then create a new workbook.

Connect to the tblTransaction and tblPos
tables, and create a new calculated column in the latter which gives the
weekday.

You can use either
=format([PosDate],"dddd") or =format(Pos[PosDate],"dddd"),
depending on how you create the formula.

Now use the RELATED function in the tblTransaction
table to show the weekday alongside the quantity sold, and use this to
create the pivot table at the start of this exercise.

Your formula should start
=RELATED(.

To get the pivot table to sort the days correctly, just sort by the day name:

Click on the row labels drop down and choose to sort A to Z.
As to why this works - wait for the calendar
part of the course!